Laboratory Experiments on Ion Heating Under Conditions Similar to the Auroral Magnetosphere

过去几年的大量研究工作 基本上澄清了对磁层的理解 等离子体物理学 这些进步将通过 三种研究方法的努力：现场观察， 理论/计算工作，以及实验室模拟 相关的等离子体物理学 大学的工作 位于欧文的加州中心是实验室模拟; 欧文的努力集中在他们的能力，研究等离子体和他们的 离子分布函数具有良好的时间和空间 分辨率，从而允许仔细研究离子响应， 静态和射频波场， 实验者的控制 这项拨款将继续实验室 研究可能有助于形成 磁层等离子体，射频加热机制 这可能会在极区产生离子圆锥分布， 磁层、射频和准静态复合场 机制和带电粒子束的形成， 离子二次曲线 总的来说，目的是研究过程， 电离层可以向磁层提供等离子体。 现在 认为电离层是一个主要贡献者， 磁层

Considerable research effort in the past few years has clarified substantially the understanding of magnetospheric plasma physics. These advances to be made through combined efforts of three research approaches: in situ observations, theoretical/computational efforts, and laboratory simulations of relevant plasma physics. The work at the University of California at Irvine centers on laboratory simulations; the Irvine effort centers on their ability to study plasmas and their ion distribution functions with excellent temporal and spatial resolution, thereby allowing careful study of ion responses to static and radio frequency wave fields which are under the experimenter's control. This grant will continue a laboratory study of mechanisms which could contribute to the formation of the magnetospheric plasma, radio frequency heating mechanisms which could create ion conic distributions in the polar magnetosphere, combined radio frequency and quasi-static field mechanisms, and charged particle beam formation which could lead to ion conics. Overall, the aim is to study processes by which the ionosphere can supply plasma to the magnetosphere. It is now believed that the ionosphere is a major contributor to the magnetosphere.